A Three Dimensional Model For The Mechanical
Study Of Railway Catenaries
Author(s)
J. Benet, T. Rojo, F. Cuartero & E. Arias
Abstract
The increasing demands for rail units, requiring among other aspects optimal and
accurate conditions to mount the catenary, needs a rigorous mechanical
calculation where the development of the corresponding computer software is
essential in order to solve the various problems in a satisfactory manner. Most of
the work done at the moment are based on two-dimensional models, but that
model is not quite realistic because the catenary is a structural system, consisting
of wires arranged in a zigzag, considering different types of loading as the
weight of the wires or the wind effect, acting such charges in different directions.
The development of an advanced model in three dimensions can be of great help
to achieve more realistic results. This paper is an introduction to the study of
mechanical railway catenary based on a three-dimensional model, the method
presented here allows different types of static problems to be solved, such as the
calculation of the stiffness of the line and the calculation of the length of the
droppers.
Keywords: railway catenary, static problems, three dimensional models, length
of the droppers, effect of the wind.
1 Introduction
In order to obtain an adequate performance in the circulation of the railway units,
the pantograph-catenary contact force should be maintained as uniform as
possible, avoiding the lost of contact or take offs. This requires, among other
aspects, precise conditions of assembly and a suitable configuration of the aerial
Keywords
railway catenary, static problems, three dimensional models, length
of the droppers, effect of the wind.
Related Book
Other papers in this volume
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